1 /* 2 * Emma Mobile EV2 processor support 3 * 4 * Copyright (C) 2012 Magnus Damm 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; version 2 of the License. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 #include <linux/clk-provider.h> 20 #include <linux/kernel.h> 21 #include <linux/init.h> 22 #include <linux/of_platform.h> 23 #include <mach/common.h> 24 #include <asm/mach-types.h> 25 #include <asm/mach/arch.h> 26 #include <asm/mach/map.h> 27 28 static struct map_desc emev2_io_desc[] __initdata = { 29 #ifdef CONFIG_SMP 30 /* 2M mapping for SCU + L2 controller */ 31 { 32 .virtual = 0xf0000000, 33 .pfn = __phys_to_pfn(0x1e000000), 34 .length = SZ_2M, 35 .type = MT_DEVICE 36 }, 37 #endif 38 }; 39 40 static void __init emev2_map_io(void) 41 { 42 iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); 43 } 44 45 static void __init emev2_init_delay(void) 46 { 47 shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ 48 } 49 50 static void __init emev2_add_standard_devices_dt(void) 51 { 52 of_clk_init(NULL); 53 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); 54 } 55 56 static const char *emev2_boards_compat_dt[] __initconst = { 57 "renesas,emev2", 58 NULL, 59 }; 60 61 extern struct smp_operations emev2_smp_ops; 62 63 DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") 64 .smp = smp_ops(emev2_smp_ops), 65 .map_io = emev2_map_io, 66 .init_early = emev2_init_delay, 67 .init_machine = emev2_add_standard_devices_dt, 68 .init_late = shmobile_init_late, 69 .dt_compat = emev2_boards_compat_dt, 70 MACHINE_END 71